Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3DIF callsign genealogy
Currently held by Blume, Gary B
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KB3DIF's current licensee, walking backwards.
- Blume, Gary BMDgranted 2019-03-11cancelled 2022-08-26
Successor callsigns
Callsigns held now by people who previously held KB3DIF.
- K3MUcancelledUOTOME MOTOAKI ARCDCgranted 1999-03-25cancelled 1999-07-14
All historical holders
Every license row we've seen with the callsign KB3DIF, oldest first.
- Blume, Gary B MD2022-08-26 active
- UOTOME, MOTOAKI— → cancelled 1999-03-25